Mammalian cerebrospinal fluid decreases in volume when the body as a whole is experiencing a negative water balance
Indicate whether the statement is true or false
FALSE
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A person with Addison disease ___________.
A) is unable to replenish blood glucose levels under stressful conditions B) develops dramatically more male features C) develops a rounded face and edema D) has overgrowth of hands and face E) all of the above
Nutrients undergo the last stages of digestion by enzymes located on the cells of the small intestine; then the nutrients are absorbed by these same cells by way of various membrane transport processes. Adipose cells absorb and store excess food energy in the form of fat. You and the other students in the physiology lab you are taking are doing an analysis of cell membrane composition, on unknown
animal tissue samples labeled A and B. All lab groups determined that sample A contained, on average, 81% protein, 18% lipid, and 1% carbohydrate. Sample B contained 85% lipid, 10% protein, and 5% carbohydrate. Sketch a graph of the class data. You now have to make a logical conclusion as to which sample is more likely to be intestine and which is adipose tissue. What do you conclude, and why? What will be an ideal response?
The sliding filament model of contraction involves ________
A) actin and myosin lengthening in order to slide past each other B) the Z discs sliding over the myofilaments C) actin and myosin sliding past each other and partially overlapping D) the shortening of thick filaments so that thin filaments slide past
Can the strength of an action potential change with the increasing strength of the stimulus?
What will be an ideal response?